Teaching HPSC Lecturer (Technical) Mock Test 2024 Environmental Engineering Water Treatment Softening
The concentrations of major cations and anions (in mM) in a river water sample are as follows, Na+ : 0.23; Mg2+ : 0.15; Ca2+ = 0.33; K+ : 0.03; Cl- : 0.16; SO2-4 : 0.07; HCO-3 : 0.86. Calculate the total hardness (in mg/L CaCO3)
1
24
2
48
3
72
4
96
5
Question Not Attempted